Thu Dau Mot University Journal of Science


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49 papers


The laboratory can be seen as an environment where students can enhance their skills by transferring theoretical knowledge into practice. The purpose of this study is to evaluate the factors affecting the satisfaction of students and lecturers majoring in Chemistry, Biotechnology, and Food Technology from the Faculty of Technology and Sustainable Development at Thu Dau Mot University. A total of 300 students from freshman to seniors and their lecturer were surveyed using a questionnaire comprising 25 observed variables. The obtained information were subsequently analyzed using Exploratory Factor Analysis (EFA) and linear regression modeling. The results indicated that the proposed model consists of four independent factors (laboratory facilities, service competence, responsiveness, and school support) and one dependent factor (satisfaction), which demonstrated reliability with Cronbach’s Alpha coefficients greater than 0.6 and total variable correlation coefficients above 0.3. The EFA results of 19 accepted observed variables showed correlations among them, with a KMO value of 0.931, a Bartlett’s test significance of 0.000, and a total extracted variance of 70.435%. These 19 observed variables were grouped into four independent factors that correlated with the dependent factor (satisfaction with four observed variables), with sig = 0.000. The linear regression analysis confirmed the appropriateness of the model regarding the observed variables, with no signs of autocorrelation or multicollinearity. The factors influencing the satisfaction of student and lecturer with the laboratory were ranked, in order of importance, as follows: school support (β = 0.683), responsiveness (β = 0.130), and facilities (β = 0.129). All standardized residuals of the observed variables lay on a straight line, indicating that they followed a normal distribution.
The callus is a disorganized mass of cells that grow in plants in response to various biotic and abiotic stimuli. Callus plays an important role in cell cultures in vitro, as a starting material for many subsequent studies such as single-cell culture, protoplast culture, micropropagation, etc. In this review, callus as well as the factors affecting callus formation and proliferation (plant growth regulator, mineral medium, carbon source, type of explant, light condition, callus line) are explored to provide a brief overview of callus culture
This research is conducted as a test of the level of satisfaction of residents in the Central Highlands of Vietnam, specifically in DamB’ri Commune, Bao Loc City, Lam Dong Province. The survey of 100 residents at 4 hamlets of DamB’ri Commune did not record statistically significant differences in the level of satisfaction of participants for the criteria including sexes, educational level, occupation, and working age. Nevertheless, there was a statistically noticeable higher level of satisfaction with Health Insurance for participants who are officers at Hamlet 3. The results of the multiple linear regression method, including 7 independent variables and 1 dependent variable, based on the Health Belief Model (HBM), show that the awareness about restrictions and benefits are the core factors impacting the level of satisfaction of residents. The results also provide crucial evidence for authorities and policymakers to devise plans and solutions to increase the level of satisfaction with Health Insurance for people in Central Highlands.
Full-duplex non-orthogonal multiple access wireless networks with energy harvesting have the potential to improve spectral efficiency and save energy. However, wireless signals are susceptible to eavesdropping by other devices within their coverage area. This paper studies the security performance of a full-duplex non-orthogonal multiple access wireless network with energy harvesting (FDNOMAWNwEH) over Nakagami-m fading channels. Results show that the total throughput increases as the power of the primary transmitter increases. Similarly, the total throughput also increases as the expected security level or the energy harvester efficiency increases. In addition, there exists a value of the NOMA power division factor that maximizes the total throughput. Furthermore, the results show that the total throughput decreases as the fading severity parameter increases.
In this study, molecular dynamics simulations were employed to investigate the influence of pressure on the structural properties of silver (Ag) at 300K. The results reveal that an increase in pressure leads to a reduction in nearest-neighbor distance, a promotion of local ordering, and a transition from a largely disordered state to a predominantly face-centered cubic FCC crystalline structure. At intermediate pressures, both hexagonal close-packed HCP and body-centered cubic BCC phases are observed; however, these phases diminish as pressure rises, with FCC becoming the prevailing phase at higher pressures. These findings demonstrate that pressure is a key factor in driving phase transitions and improving crystallinity in metallic systems.
Conductivity is a crucial and widely recognized concept in material science, particularly significant in the study of low-dimensional systems. This research extends the analysis of the conductivity tensor within a quantum well with infinite potential, focusing on electron-acoustic phonon scattering. The system is subjected to two external fields: an electromagnetic wave and a laser field. The study explores the detailed effects of these external fields, noting that significant impacts occur only at high frequencies. Among the factors affecting conductivity, the amplitude of the laser field is the most influential. Additionally, when the electromagnetic wave frequency exceeds 1012 s-1, its impact on conductivity becomes considerable.

KNOWLEDGE, ATTITUDE, AND FALL PREVENTION PRACTICE AMONG NURSES AT LEVEL II GOVERNMENT HOSPITALS IN HO CHI MINH CITY, VIETNAM

Le Thi Nhung, Bea-Gracia M. Cruz, Can Thi Lien, Pham Thi Thuy Hong, Nguyen Thi Van, Nguyen Thi Kim Thoa
Fall prevention represents a vital clinical indicator in healthcare settings and serves as a fundamental element of patient safety. This study aimed to evaluate nurses’ knowledge, attitude, and practices on fall prevention in caring for patients as well as explore the relationship between knowledge, attitude, and practices on fall prevention in patient care. This study was conducted on 312 nurses working in four selected level II government hospitals in Ho Chi Minh City from August to October 2024. The majority of nurses were female, with diplomas or BSNs, averaging 39.2 years old and 15.8 years of clinical experience. 77.9% attended a fall prevention training course. Most nurses showed moderate knowledge (66.7%) and practices (mean score of 3.26/5) regarding fall prevention, while their attitudes were generally positive (mean score of 3.92/5). Strong correlations were found between knowledge, attitude, and practices, as well as with prior training and education level (p < 0.001). Factors such as age, work experience, education, and training were predictive of fall prevention practices. Furthermore, attitude partially mediated the relationship between knowledge and practice. In summary, the study highlights the importance of fall prevention training, improving knowledge and attitudes, and considering factors like work experience and education in nursing practices. The mediating role of attitude suggests that fostering a positive attitude is key to better fall prevention practices, emphasizing the need for targeted educational programs that enhance both knowledge and attitudes to improve clinical outcomes.
Tourist motivation is a critical aspect of tourism research, providing valuable insights into why people travel and what influences their destination choices. This article aims to provide a systematic review of the leading models used to understand tourist motivation, examining both psychological and external factors that drive tourist behaviours. Key frameworks such as Maslow’s Hierarchy of Needs, Push-Pull Theory, and Iso-Ahola’s Motivation-Relaxation Model are explored to highlight the various intrinsic and extrinsic forces that motivate tourists. Additionally, models like Plog’s Psychographic Typology and the Travel Career Ladder offer valuable perspectives on how travel motivations evolve with experience and personality traits. By synthesizing these diverse models, the review not only provides a broad understanding of tourist motivation but also underscores the complexity and multidimensional nature of travel behaviour. Understanding these models is essential for tourism practitioners, as it enables more targeted marketing strategies, improved destination management, and enhanced visitor satisfaction. This article aims to contribute to a deeper understanding of the motivations that shape tourism trends and to offer a framework for future research in the field.
This article analyzes South Korea’s new National Security Strategy (NSS) released in June 2023 under President Yoon Suk-yeol. The study situates the NSS in the context of rapidly changing regional and global geopolitics, examining the factors driving the emergence of this new strategy. The article primarily uses secondary document analysis methods to identify the content of the NSS; the research clarifies significant changes in South Korea’s approach to national, regional, and global security issues. The research results not only provide insights into South Korea’s national security strategy but also contribute to a better understanding of the geopolitical dynamics reshaping the regional order.
This study aims to determine and measure the influence of factors attracting domestic tourists to Binh Duong province through quantitative research with 129 domestic tourists, convenience sampling method, data collected from the period from March 1, 2022 to March 31, 2022. There are 5 selected sites: Hoi Khanh pagoda, Dai Nam tourist area, Thuy Chau eco-tourism area, Phu An bamboo village, Cau Mountain - Dau Tieng Lake relic complex. The results of EFA exploratory factor analysis using SPSS software show that there are 5 factors affecting the attraction of domestic tourists to Binh Duong province, including: (1) tourism resources; (2) travel services; (3) tourism products; (4) tourism infrastructure; (5) promotion of tourism. However, the results of the regression analysis show that only the factors "tourism infrastructure" and "tourism resources" affect the ability to attract domestic tourists to Binh Duong, while the other factors donˈt have enough grounds to conclude. On the basis of the research results, this paper proposes management implications to improve the ability to attract more tourists to visit.
Due to the limitations of traditional adsorbents for dyeing wastewater, this study combined natural adsorbent (CS, chitosan) and hydroxyapatite (HAp) to form a composite for enhancing the adsorption of aqueous Congo red (CR). The chitosan was prepared from crab shells (Somanniathelphusa sinensis) with a deacetylation degree of about 89%. The HAp and HAp-CS composites were prepared by precipitation in high pH (~10) with the help of concentrated ammonia water (25%). The crab shell chitosan and chitin were characterized by the FTIR method, and the HAp and HAp-CS composites were analyzed using the SEM method. The CR adsorption experiments were carried out in batch form and sampled once for each condition. The results showed that the characteristic peaks in the FTIR spectrum confirmed the success of the crab shell chitosan preparation. The HAp and HAp-CS composites possess porous structures and seem to have a high surface area. The CR adsorptions reached optimal after 5-15 min. contacting, the adsorption efficiency tended to decrease with the initial concentration of CR and increase with the adsorbent dosage. The initial pH of the solution affected the adsorption efficiency for the 70%HAp-CS and 30%HAp-CS composites but had almost no effect on the adsorption capacity of 0%HAp-CS and 50%HAp-CS. The 50%HAp-CS composite had the best adsorption capacity among the synthesized composites (qmax = 769.2mg/g). The adsorption isotherm and kinetics best fit the Langmuir isotherm and pseudo-second-order kinetics model.
In recent years, asymmetric gold nanoparticles have attracted a lot of attention from researchers owing to their unique properties and varied applications in many fields. In this study, gold nanobranches were prepared using a one-step, green reducing method, with the HEPES buffer acting as both a reducing agent and surfactant. The formation of gold nanoparticles was evaluated using UV-Vis spectroscopy by controlling several practical factors, including the volume of gold salt precursor, the concentration of HEPES buffer, and the solution pH. The morphologies and crystallization of the gold nanobranches were characterized by Scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results indicated that under the optimal synthesis conditions, namely 250 µL of 5 mM HAuCl₄, 0.10 M HEPES, and a pH of 7.5, most of the gold particles in the colloidal solution exhibited multiple branches, with an average size ranging from 20 to 35 nm and high crystal density. This study presented a simple synthesis method utilizing eco-friendly substances to replace conventional reducing agents, contributing to the sustainable development of nanotechnology.
Pain is a global health concern that requires the attention of the healthcare services. This study aimed to evaluate nurses’ knowledge, skills on pain management for caring post – transurethral resection of the prostate (TURP) as well as explore the relationship between knowledge and skill regarding pain management for post – TURP patients. This study was conducted on 230 nurses who have worked at two public hospitals in Ho Chi Minh city from April to June 2024. The result showed that the majority of nurses were female, had a mean age of 37.3 years and an average of 13.7 years of direct clinical experience. Of these, 57.4% of nurses have attended the previous pain training course. The majority of nurses lack knowledge regarding pain management with 86.5%. The study also indicated that nurses’ educational level, knowledge and attitude toward pain management are significant predictive factors of nurses’ skills on pain management when caring post – TURP patients. Knowledge on pain management had a very strong positive correlation with attitude (r = 0.820, p < 0.001) as well as skills (r = 0.91, p < 0.001). Besides, there was a very strong and positive correlation between attitude and skills on pain management (r = 0.91, p < 0.001). There was a mediating relationship between knowledge, attitude and skills on pain management, attitude played a partial mediating role between knowledge and skills. In summary, the study indicates a need for targeted educational interventions to bridge the gap between knowledge and skills in pain management, particularly in non-pharmacological strategies, to improve overall care for post-TURP patients.
The study aimed to evaluate disease knowledge, perceived susceptibility and compliance behaviors of post-kidney transplant patients as well as assess relationship between disease knowledge, perceived susceptibility and compliance behaviors. A descriptive cross-sectional study conducted on 153 post-kidney transplant patients from March to June 2024 at Outpatient Department of Cho Ray hospital. The result showed that the majority of respondents have a lack of knowledge regarding medication and lifestyle change post kidney transplantation. While perceived susceptibility of respondents were at a fair level. Majority of respondents has a low level of perception regarding barriers to adherence and susceptibility to transplant rejection, while they have a good level of perception regarding benefits of adherence to treatment with immunosuppressive medication. Compliance behavior of post kidney transplant adults was at a good level. Majority of respondents had good compliance behavior regarding medication, while exercise and psychological adaptation was the lowest level of compliance behavior. There are positive relationships between Compliance behaviors and disease knowledge (r = 0.49, p < 0.001); perceived susceptibility (r = 0.45, p < 0.001) and perceived susceptibility plays a partial mediating role between knowledge and compliance behaviors and the mediating effect accounted for 31% of the total effect of disease knowledge on compliance behavior. The study also indicated that educational level (ꞵ = 0.93, p = 0.020), duration of transplant (ꞵ = 0.20, p = 0.012) are predictive factors of compliance behavior among post – kidney transplant patients. Educational interventions targeting both knowledge and health beliefs, particularly for older individuals, could improve adherence to treatment and overall health outcomes.
This study developed a dataset on land cover to analyze the continuous urban land extension in Buôn Ma Thuột City, located in the Central Highlands of Vietnam, from 2000 to 2023. The analysis employed object-based image analysis (OBIA) for backward classification and calculated expansion indices. The results reveal that the total urban land area increased by 22.75% over two decades, despite an average annual population growth rate of only 1.91%. The spatial growth exhibited relatively uniform growth in all directions, but it was most concentrated in the urban core and the northern and eastern parts of Hoa Thuan, Tan Loi, Tan An, Tan Hoa, and Tan Lap wards. This expansion included edge development (6.69%), leapfrog expansion (18.39%), and infill increase (5.44%). Driving factors, analyzed through Pearson correlation coefficients, indicate that urban land growth between 2000 and 2023 was positively influenced by GDP, urban population, and total population but was inversely correlated with the poverty rate. This study provides quantitative methodologies for better understanding urban land dynamics and offers practical strategies for sustainable urban development.
The study aims to explore factors influencing middle school students' motivation to learn. Instead of assuming a general decline in motivation, it objectively examines the issue through research, identifying key influences such as curriculum difficulty, teaching methods, and external pressures. By analyzing survey data from eighth-grade students at Chu Van An Middle School, the study provides evidence-based insights into the challenges affecting student engagement in learning. This research aims to identify the factors affecting the learning motivation of middle school students to help them become more engaged in their studies. In this study, the author designed a survey questionnaire of 8 questions combined with a quantitative method to identify the factors causing a lack of interest in learning among middle school students. The survey was conducted at Chu Van An Middle School in Binh Duong Province. The survey participants were 375 eighth-grade students in the 2024-2025 academic year. According to the survey, 184 male students felt uninterested in learning due to various factors, accounting for 49.07%; 157 female students, accounting for 41.87%; and 34 students of other genders, accounting for 9.07%. Given this situation, it is urgent to propose feasible solutions to help students regain interest in learning.
Objectives: This study investigated the relationship between work environment and job satisfaction among nurses in selected hospitals in Vietnam to propose a framework for improving nursing practice. Methods: A descriptive correlational research design was used and 375 nurses were randomly selected. Data were collected using validated instruments: the Nursing Work Index Practice Environment Scale and the Job Satisfaction Survey. Data analysis was performed using the Statistical Package for Social Sciences (SPSS) software. Descriptive statistics were used to measure the variables. Differences in work environment and job satisfaction were examined according to demographic data using independent sample t-tests and one-way ANOVA. Results: The results showed that the work environment was scored as 2.64 (SD = .42) and the job satisfaction was scored as 3.52 (SD = .47). The work environment was highly correlated with job satisfaction (r = .52, p < .01). Furthermore, long working hours in a week can lead to decreased job satisfaction among employees. Conclusion: These results indicate that the work environment is one of the key factors affecting job satisfaction. This study underscores the need for creating a supportive work environment in hospitals to enhance quality nursing care.
Vietnam and India are two countries that had a very early diplomatic relationship nurtured by the people of two countries over time. Among the factors that create strong bond between Vietnam and India, it is impossible not to mention the presence of Indian community. The Indian community in Ho Chi Minh City is creating the cultural diversity of this land. They have also contributed to cultural exchanges with Vietnamese, attracting investment from India, tightening relations between two countries in the new stage of development. The article uses the theory of cultural exchange and acculturation to study the socio-cultural and economic life of Indians in Ho Chi Minh City in the context of urban culture in the era of globalization. The article is designed with two main contents: First, the historical movements of Indian community in Ho Chi Minh City, Second, the acculturation and cultural exchanges between Vietnamese and Indian community in Ho Chi Minh City. The research results aim to analyze and explain the phenomenon of cultural exchange and acculturation in the fields of economics, religion, and clothing. Thereby, the article contributes to providing documents for cultural preservation, attracting investment, and developing spiritual tourism in Ho Chi Minh City.
Over several decades, a combination of historical, economic, and political factors have influenced the multifaceted phenomenon of Vietnamese return migration from Cambodia. This article examines the return migration of Vietnamese from a historical perspective with document and contextual analysis, revealing a broader picture of the socio-economic and political dynamics in Cambodia and the historical relationship between Cambodia and Vietnam. Before the 1990s, return migration was significantly influenced by colonial-era migration policies and pervasive anti-Vietnamese sentiments. These factors led to violent repression and forced evictions under regimes such as Lon Nol and the Khmer Rouge, profoundly impacting the Vietnamese community in Cambodia. In contrast, administrative governance and economic factors have become the key determinants of Vietnamese return migration in the contemporary period. Understanding the underlying causes and mechanisms that create the situation for Vietnamese in Cambodia and their return is crucial, serving as a basis for addressing their current challenges and promoting their social integration in both countries.
In the context of the robust economic and social development in Ho Chi Minh city’s suburban areas numerous job opportunities have emerged for the youth. However, choosing a suitable career to develop oneself and ensure a stable future is crucial for them. Therefore, young people need to consider multiple factors when making career decisions. Having based on qualitative and quantitative data collected from community surveys conducted between 2022 and 2023, the study aims to analyze the current situation and factors influencing career choices among youth in the suburban areas of Ho Chi Minh City. The results indicate that career choices among young people in the suburban areas of Ho Chi Minh City are highly diverse due to the influence of various factors. Notably, urban development reducing agricultural land, along with industrialization, modernization, and communication, are key factors impacting the selection and pursuit of careers in these suburban areas.
Sustainable development is a crucial issue that has been particularly emphasized by the Party and the Government of Vietnam, especially in areas with a large population of ethnic minorities. The Southern Central Highlands is currently home to nearly 50 ethnic groups, among which local ethnic minorities such as the Ê Đê, K’ho, and M’nông are striving to develop their economy, culture, and society sustainably. However, this development process faces numerous challenges from both objective and subjective factors, including natural conditions, government development policies, ethnic psychology, and religious factors. At present, Catholicism and Protestantism are the two main religions within the ethnic minority communities of the Southern Central Highlands. Introduced to the region from the late 19th to early 20th century, these two religions flourished in the second half of the 20th century and have become major elements in the spiritual lives of the communities. Religion has had and continues to have significant impacts on the economic, cultural, and social development of local ethnic minorities, contributing positively to the process of sustainable development. This article uses data collected from the community through participant observation, in-depth interviews, and survey questionnaires to analyze the impact of religion on the economic, cultural, environmental, and social aspects of local ethnic minorities in the South Central Highlands in the context of sustainable development.

IMPACT OF CREDIT RISK MANAGEMENT ON PROFITABILITY OF COMMERCIAL BANKS: A CASE STUDY IN VIETNAM

Dang Thi My Dung, Zahra Salimi, Tran Hoang Viet Linh, Ninh Mai Phuong, Bui Phuong Anh, Le Buu Thanh Xuan, Vo Dang Uyen Thy
The main purpose of this study is to examine the impact of credit risk management on profitability of commercial banks in Vietnam. While the existing literature emphasizes the necessity for a more in-depth study and additional empirical evidence to elucidate intricate relationships between market dynamics and credit risk, particularly in the context of commercial banks in Southeast Asia, there remains a gap in comprehensive studies, with a specific focus on Vietnam. The secondary data was collected from 20 commercial banks from the country for the period of 11 years, from 2012 to 2022. The study used non-performing loans ratio (NPLR), capital adequacy ratio (CAR) as well as loan-loss provision ratio (LLPR) as proxies of credit risk while the financial performance is measured by return on equity (ROE). Moreover, the bank's characteristics, such as its size (SIZE), the macroeconomic inflation rate (INF), and a dummy variable that looks at how ownership type (OWN) affects the bank's profitability are all applied to quantify the independent variables. The model does not exhibit the multicollinearity issue, according to the mean Variance Inflation Factor (VIF) data. The regression results reveal that SIZE, CAR and INF variables have a significant positive effect on ROE, while the NPLR variable has an opposite significant effect on ROE. Nevertheless, there is no connection between the ROE-measured financial performance of commercial banks and the OWN or LLPR variables. This offers further valuable insights to bankers and policy makers in credit risk management of commercial banks in Vietnam to enhance the stability of the Vietnamese banking system.
Advanced materials have been of interest in recent years because of their outstanding properties that bring many useful applications to humans, they can be highly compatible with alternative materials. In particular, coating materials on HAp base increase the biocompatibility of HAp. In this study, we synthesize TiO2/HAp composite materials using the sol - gel method. Samples were made under different synthesis conditions in terms of HAp/TTIP ratios: (1:1); (1:1.5); (1:2); (1:2.5); (1:3). Factors affecting the synthesis process, such as the incubation time and pH of the solution, were also investigated. The optimal conditions for the synthesis process are the ratio HAp/TTIP: 1 gram HAp with 2 ml TTIP; stirring time: 16 hours; pH of the gel solution: pH = 0.5, as determined from the analysis of the X-ray diffraction spectrum and SEM surface morphology. The research results are the basis for research on biomedical materials.
International integration not only brings opportunities but also challenges for teaching and learning English. Like other universities, Thu Dau Mot University focuses on teaching English for non-majored students of different faculties to meet the curriculum as well as provide knowledge for them to be confident when communicating. However, teaching English to non-majors still faces a lot of difficulties due to a number of factors. This study aims to understand the attitudes of non-English major students toward learning English at TDMU. Quantitative methods are used through survey questionnaires related to students' attitudes toward learning English and factors affecting students' attitudes toward learning English, and also finding out their wishes when participating in English learning activities in class. The questionnaire was sent to 190 students of different levels (levels 3-5). The results of the study show that most students are aware of the importance of learning English but they are not highly motivated to learn. According to the analysis results, students do not have a positive attitude towards learning English for the following reasons: They haven't spent time studying because they have to work part-time job for paying tuition fee; The purpose of using this language after graduation has not been determined, and they haven’t found a suitable learning method. From these findings, some solutions have been discussed to improve students' English learning attitudes, help lecturers make appropriate adjustments to improve students' learning outcomes and meet the standards school output as well as meet the needs of society.

Publication Information

Publisher

Thu Dau Mot University, Viet Nam

Editor-in-Chief

Assoc. Prof. Nguyen Van Hiep
Thu Dau Mot University

Editorial Board

Assoc. Prof. Le Tuan Anh
Thu Dau Mot University
PhD. Nguyen Quoc Cuong
Thu Dau Mot University

PhD. Doan Ngoc Xuan
Thu Dau Mot University
PhD. Nguyen Khoa Truong An
Thu Dau Mot University

Assoc. Prof. Nguyen Thanh Binh
Thu Dau Mot University
PhD. Le Thi Thuy Dung
Thu Dau Mot University

PhD. Ngo Hong Diep
Thu Dau Mot University
PhD. Nguyen Duc Dat Duc
Ho Chi Minh City University of Industry and Trade

Assoc. Prof. Nguyen Van Duc
Animal Husbandry Association of Vietnam
PhD. Nguyen Thi Nhat Hang
Department of Education and Training of Binh Duong Province

PhD. Nguyen Thi Cam Le
Vietnam Aviation Academy
PhD. Trần Hạnh Minh Phương
Thu Dau Mot University

M.A. Pham Van Thinh
Thu Dau Mot University
PhD. Nguyen Thi Lien Thuong
Thu Dau Mot University

Prof. Le Quang Tri
Can Tho University
Prof. Banh Quoc Tuan
Thu Dau Mot University